This kiln is controlled by a homemade controller. For more information about this system, see Project:Kiln_Automation.
- Knight Kilns 960 S. Bellevue St, Memphis, Tn 38106 tel:1-901-947-2580
- heating coils
This tool requires certification for use.
Space One Eleven.
List of Currently Certified Users
|Qualified Member||Trained By|
|Katie||Kansai Gaidai University|
Past project info
Materials and parts
The original Nichrome wire all seemed fine, with a resistance of around 20 Ohms per coil. Each section has 2 coils, so each section draws ~2 * 9.6A, let's say 20A.
The original between-section connectors were shot (original connectors were spec'd for 20A, which is way too close to the power actually pulled, they are all corroded, and they are not the locking type).
The connectors needed are NEMA L6-30 (or L7-30 / L8-30, but those offer nothing to the kiln and are generally more expensive). We need two male and two female - they run around $10-$20 for each on amazon, so expect $60 total. Ebay has some cheaper ones.
TODO Presumably these connections have already been re-done, or modified.
At least one of the switches for controlling strength of each section
is broken too. We can replace them with 4 position / 12 terminal
rotary switches that handle at least 15A 240VAC per contact. They're
around $8 each off amazon; I didn't check other places.
(This feature is not currently supported)
We need to examine some of the other parts as well, it looks like the
timer mechanism may need repair, and maybe the sitter mechanism as
(These features are not currently supported)
We'll also need wire, preferably stranded copper, that can handle 15A
and wire that can handle 25A (or just use all wire that can handle
(This is done)
here is the kiln manufacturer's website: http://www.seattlepotterysupply.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=sps_ecat&Category_Code=EC1
they have repair parts.
Here is a link to the cone supports we need that are missing from the tune assembly for the kiln sitter: http://www.axner.com/kiln-sitter-cone-supports-set-of-2.aspx